Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

In this project, waves of vibrations are experimented with using water in glasses.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Construct and experiment with a periscope using reflected light rays to gather an image.

Examine the effect of pressure on carbonation in soda.

Discover whether a metal will expand under hot water.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

The purpose of this science fair project is to build a basic radio.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair experiment idea's objective is to understand the general concept of an acid and a base.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This science fair project idea explores whether white light can be separated into different colors.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This project investigates the affect of storage temperature on microwave popcorn.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Explore if planting seeds in a certain direction will affect how fast it germinates.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.